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Brake Creak When Pressing Brake Pedal

Old 06-28-2018, 11:23 AM
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carbonbased1
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Default Brake Creak When Pressing Brake Pedal

I put new pads on my 2012 GT about a year ago (premium after-market pads - if it makes a difference). Not long after, I started noticing a creaking sound when stopped at a red light - front right side. To be clear, it's not a squeaking sound as in worn pads. It sounds like a metal cable being stretched and only when I'm stopped (like an "eeee rrrrr"). It does it when the brake pedal is pressed firmly and when it's released from a firm press. It used to start about halfway through a 9-mile trip to work (with red lights). Now it starts not long after I back out of the driveway.

A technician friend of mine told me to grease the clips on the caliper. I removed them, wired brushed them, greased them with a high-temp CRC brake grease, and re-installed. The noise went away for an afternoon. But came back the next day (when I went to work). I bought a brake hardware kit from Advance (clips and rubber boots for the caliper pins). When I installed, I applied grease to the new clips, re-greased the pins when installing the rubber boots, lightly greased the metal ears of the pads that go in the clips, and re-installed. The creaking came back about half-way through my 9-mile trip to work.

Also, the pads were super hard to get into the clips. Once they were in, they moved freely. My thoughts: are the pads maybe too tight, caliper piston issue, bad caliper, maybe those anti-whatever springs on the pads are too tight/too loose, etc. Please help!!!
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Old 06-28-2018, 02:02 PM
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08'MustangDude
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Yep... Common thing with the S197, mine does it too.

People have done everything except replace the calipers, and nothing helped,
until they replaced the calipers...

It's the plunger(s) making the noise.
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Old 06-28-2018, 03:17 PM
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carbonbased1
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Can you clarify "plunger" for me? I can work on stuff, but don't always know the nomenclature. Are you talking about the piston?
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Old 06-29-2018, 01:25 AM
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08'MustangDude
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Yeah, caliper piston(s).
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Old 08-24-2018, 06:54 PM
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Update: Went away with new rear LCAs. The place I bought it, told me it was the
rear LCA bushings, but I did not believe them. Well, for once, they were right. I
am not getting that noise anymore after replacing the OEM:
https://mustangforums.com/forum/s197...installed.html
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